Wind-tunnel tests of a Clark Y wing with 'Maxwell' leading-edge slots (1937)
NASA Technical Reports Server (NTRS) · leaf 11
Angle of attaok, a ,degrees Slot gap, percent of elat chord Figure 4 (b).- The Clark Y wing with 0.30 o. Maxwell slat. Effeot of parlous gape on maximum lift with flap neutral and. defleoted.
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.